LibWeb+LibWebView+WebContent+Ladybird: Add IPC call that opens new tab

Author: https://github.com/kalenikaliaksandr
Commit: a9f8d4eada
Pull-request: https://github.com/SerenityOS/serenity/pull/17855
Reviewed-by: https://github.com/linusg
Reviewed-by: https://github.com/trflynn89 ✅

Userland/Libraries/LibWebView/WebContentClient.cpp

@@ -240,6 +240,11 @@ void WebContentClient::did_update_cookie(Web::Cookie::Cookie const& cookie)
     m_view.notify_server_did_update_cookie({}, cookie);
 }
 
+Messages::WebContentClient::DidRequestNewTabResponse WebContentClient::did_request_new_tab()
+{
+    return m_view.notify_request_open_new_tab({});
+}
+
 void WebContentClient::did_close_browsing_context()
 {
     m_view.notify_server_did_close_browsing_context({});